Jillian Hammes, D.O.
NPI 1457621195 · Family Medicine Physician · Colton, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jillian Hammes, D.O. is a Family Medicine Physician provider in Colton, CA (NPI 1457621195).
Provider details
- NPI number
- 1457621195
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 20A12086 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 85 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 307 | 138 |
| Losartan Potassium | 226 | 93 |
| Rosuvastatin Calcium | 188 | 74 |
| Lisinopril | 164 | 75 |
| Levothyroxine Sodium | 155 | 69 |
| Amlodipine Besylate | 153 | 73 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-01-11
- Last updated
- 2021-11-29
- Certified
- 2021-11-29
Frequently asked questions
- What is Jillian Hammes's NPI number?
- Jillian Hammes's National Provider Identifier (NPI) is 1457621195, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jillian Hammes's specialty?
- Jillian Hammes is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jillian Hammes located?
- Jillian Hammes's practice location on file with NPPES is 400 N Pepper Ave, Colton, CA 92324-1801.
- What is Jillian Hammes's phone number?
- The practice phone number listed in the NPPES registry for Jillian Hammes is (909) 580-3370.
- Does Jillian Hammes accept Medicare?
- Jillian Hammes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jillian Hammes's NPI active?
- Yes — Jillian Hammes's NPI (1457621195) is active in the NPPES registry as of the last update on 2021-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.